Release Notes: This release fixes timeout handling in various functions by fixing the
internal select(2) usage. The timeout structure has been (standard
compliantly) modified in place on some platforms (like Linux), so its
values have to be preserved before calls to select(2).

Release Notes: This release adds casts to NULL pointers passed to variadic functions because NULL is not guaranteed to be a pointer. SA_SYSCALL_GETHOSTBYNAME has been added for supporting the overloading of gethostbyname(2) system calls. The build environment has been upgraded to GNU libtool 1.5.10 and GNU shtool 2.0.1.

Release Notes: This release allows negative values for SA_OPTION_LINGER to cover
the special case of l_onoff=1/l_linger=0 in which a TCP RST-based
connection termination is performed on close(2), provides an Autoconf
check va_copy(d,s) macro and fallback implementations, and removes the
obsolete "#undef socklen_t" from sa.h.